That particular load is for my 16" M4 with a red dot so I can't speak to it's accuracy.
I do have a load using a 75 RMR with Tac for my WOA 26" upper that is very accurate with a SD around 5.5 for 10 shots. Effective out to 670 yards which is the limit of our range.
I found it takes some load development, maybe more so than other cartridges. I worked up a powder charge first then tried different OALs. Aero Precision 16" with 55 FMJBT and Tac.
I bought a moving target system from Action Targets years ago. It reverses and runs off a wearable battery pack, a 12 volt battery or the battery in a vehicle.
When I get home I'll see what the motor shows. It's not very big.
With the new update transfered a session to my S21 and was able to read it, etc. Cool.
I then downloaded it to the device. However, I can't find that spreadsheet anywhere on the S21. ???
Anyone know where these downloads go?
I have over 20 different years of LC 556 and they test between 125 to 127. For mixed LC 556 I use 126. Works fine.
I also have a very large batch of LC21 and everytime a primer pocket gets loose I analyze it. So far they are consistently testing at 125.
I watched something where Alex said 1...
I didn't know what to start with so focused on the powder charge first.
For my AR mag length loads I used 2.250" and worked up the charge with Ramshot Tac and found a sweet spot.
For single shot long range work I measured the lands and tried the same powder charge but changed the OAL. Best...
My 26" WOA AR15 likes 75gr BTHP with a Nato level charge of Ramshot Tac, CCI450 and LC brass.
I also get great accuracy, but at lower velocity, with BLC2 and 8208XBR.
Long ago I had a rock tumbler and used dry media. It worked.
Then I got a RCBS Sidewinder rotary. With it I switched to water. Using either the RCBS liquid media or just Dawn.
9mm acted as it's own media and came out shiny but would not clean the inside or the primer pockets. I mixed 556 and...